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181.发明申请公开(公告)号：US20190081601A1
公开(公告)日：2019-03-14
申请号：US16015657
申请日：2018-06-22
Applicant: Analog Devices Global Unlimited Company
Abstract: Differential sampling circuits may be adversely affected by changes in common mode voltage. Changes in the common mode voltage may alter the on resistance of transistor switches which it turn may mean that small signal changes are not correctly observed against a bigger common mode signal. The present disclosure relates to a way of improving the ability to resolve small differential signal changes by varying the supply or drive voltage to a component to compensate for common mode voltage changes.
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公开(公告)号：US20190064307A1
公开(公告)日：2019-02-28
申请号：US15691438
申请日：2017-08-30
Applicant: Analog Devices Global Unlimited Company
Inventor： Seyed Amir Ali Danesh , John Stuart
Abstract: The present disclosure relates to generating a measurement sensor profiling summary in relation to a measurement sensor of an electrical measurement system, the measurement sensor being suitable for measuring an electrical property. The profiling summary is generated by obtaining a plurality of profiling results each comprising an estimate of a transfer function of a measurement sensor of the electrical measurement system and a corresponding certainty value indicative of the accuracy of the estimate of the transfer function, wherein the plurality of profiling results are based on estimates of the transfer function of the measurement sensor and corresponding certainty values that were determined by a monitor module of the electrical measurement system during a profiling period of time; and generating a profiling summary based on at least one of the plurality of profiling results.
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公开(公告)号：US20190064306A1
公开(公告)日：2019-02-28
申请号：US15691414
申请日：2017-08-30
Applicant: Analog Devices Global Unlimited Company
Inventor： Seyed Amir Ali Danesh , John Stuart
IPC: G01R35/00 , G01R21/133
Abstract: The present disclosure relates to the control of an operation of a monitor module of an electrical measurement system, where the monitor module has a plurality of operating states, including a) monitor at least a first measurement sensor of the utility meter to determine a first monitor result comprising an estimate of a transfer function of the first measurement sensor and a corresponding certainty value indicative of the accuracy of the estimate of the transfer function of the first measurement sensor, wherein the first measurement sensor is for measuring a first electrical property, and b) do not monitor any measurement sensor of the electrical measurement system.
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公开(公告)号：US10218268B1
公开(公告)日：2019-02-26
申请号：US15936122
申请日：2018-03-26
Applicant: Analog Devices Global Unlimited Company
Inventor： Maitrey Kamble , Michael C. W. Coln , Vinayak Mukund Kulkarni
Abstract: The present disclosure relates to a voltage reference circuit and a method of providing a voltage reference. The voltage reference circuit uses a switched capacitor arrangement to move charge between capacitors during different phases of operation of the circuit to which the voltage reference is being provided. The circuit being provided with a voltage reference may be an analog-to-digital converter (ADC). A reservoir capacitor is used to supply the reference voltage. During a phase in which no voltage reference is required, charge is shared between the capacitors of the switched capacitor arrangement, in order to boost the charge on the reservoir capacitor. After charge sharing, the reservoir capacitor is topped up with an output from a reference buffer. The reservoir capacitor may then be used again in the next conversion phase.
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公开(公告)号：US20190036492A1
公开(公告)日：2019-01-31
申请号：US15665010
申请日：2017-07-31
Applicant: Analog Devices Global
Inventor： Celal Avci , Bilal Tarik Cavus
Abstract: A wide range differential current switching circuit can operate across a wide range of input currents and across a broad range of frequencies. A first differential current source can include a first transistor and a second transistor. The first transistor receives a switching signal and provides an output current and at output node. The second transistor receives an inverted switching signal, the first transistor and the second transistor coupled to each other at a tail node. A current source provides an input current to the tail node. A third transistor can provide a boost current to the tail node while the first transistor is off.
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Patent Agency Ranking
公开(公告)号：US10193507B1
公开(公告)日：2019-01-29
申请号：US15665010
申请日：2017-07-31
Applicant: Analog Devices Global
Inventor： Celal Avci , Bilal Tarik Cavus
Abstract: A wide range differential current switching circuit can operate across a wide range of input currents and across a broad range of frequencies. A first differential current source can include a first transistor and a second transistor. The first transistor receives a switching signal and provides an output current and at output node. The second transistor receives an inverted switching signal, the first transistor and the second transistor coupled to each other at a tail node. A current source provides an input current to the tail node. A third transistor can provide a boost current to the tail node while the first transistor is off.
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公开(公告)号：US20190019644A1
公开(公告)日：2019-01-17
申请号：US15652181
申请日：2017-07-17
Applicant: Analog Devices Global Unlimited Company
Inventor： Check F. Lee , Philip James Brennan
Abstract: An microelectromechanical switch uses electrostatic attraction to draw a beam toward a contact and electromagnetic repulsion to disengage and repel the beam from the contact. The electrostatic attraction is generated by a gate electrode. The electromagnetic repulsion is generated between the beam and a magnetic coil positioned on the same side of the beam as the contact. The magnetic coil produces a magnetic field, which induces a current in the beam that repels the magnetic coil. The gate electrode and the magnetic coil may be co-planar or in different planes. A circuit may also operate a coil-shaped structure act as the gate electrode and the magnetic coil, depending on the configuration.
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公开(公告)号：US10181860B1
公开(公告)日：2019-01-15
申请号：US15794367
申请日：2017-10-26
Applicant: Analog Devices Global Unlimited Company
Inventor： Sharvil Pradeep Patil , Hajime Shibata , Wenhua William Yang , David Nelson Alldred , Yunzhi Dong , Gabriele Manganaro , Kimo Tam
Abstract: A residue generation apparatus for use in continuous-time and hybrid ADCs is proposed. The apparatus includes a quantizer for digitizing an analog input to generate a digital output, and means for applying a first transfer function to the digital output from the quantizer to generate a digital input to a feedforward DAC, based on which the DAC can generate a feedforward path analog output. The apparatus further includes means for applying a second, continuous-time, transfer function to the analog input provided to the quantizer to generate a forward path analog output, and a subtractor for generating a residue signal based on a difference between the forward path analog output and the feedforward path analog output. Proposed apparatus allows selecting a combination of the first and second transfer functions so that, when each is applied in its respective path, the residue signal passed to further stages of an ADC is reduced.
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公开(公告)号：US10181719B2
公开(公告)日：2019-01-15
申请号：US14658779
申请日：2015-03-16
Applicant: Analog Devices Global
Inventor： Edward John Coyne
Abstract: A protection device is provided that is placed in series connection between an input or signal node and a node to be protected. If the node to be protected is a relatively high impedance node, such as the gate of a MOSFET, then the protection device need not carry much current. This enables it to be built to be very fast. This enables it to respond rapidly to an overvoltage event so as to protect the circuit connected to the node to be protected. The protection device may be used in conjunction with other protection cells that offer greater current carrying capability and controllable trigger voltages, but which are intrinsically slower acting.
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190.发明申请公开(公告)号：US20190013668A1
公开(公告)日：2019-01-10
申请号：US16035538
申请日：2018-07-13
Applicant: Analog Devices Global Unlimited Company
Inventor： Padraig Fitzgerald , Eric James Carty
Abstract: A method of and apparatus for protecting a MEMS switch is provided. The method and apparatus improve the integrity of MEMS switches by reducing their vulnerability to current flow through them during switching of the MEMS switch between on and off or vice versa. The protection circuit provides for a parallel path, known as a shunt, around the MEMS component. However, components within the shunt circuit can themselves be removed from the shunt when they are not required. This improves the electrical performance of the shunt when the switch is supposed to be in an off state.
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